Contractor on San Francisco permit records

Mammoth Plumbing Inc

License #1127732 (check status at CSLB) (415) 919-7791 445 C St, Colma, CA

This page is built from public San Francisco permit records. It shows permits this firm pulled, not the quality of its work, and it isn't a recommendation. We don't check whether a contractor is currently licensed, bonded or insured. Verify that at the CSLB before you hire.

SF jobs on record

Jobs in the past year

Typical job size

—

Most recent job

6mo ago

Apr 8, 2026

What they work on

Jobs per year

'17

'18

'19

'20

'21

'22

'23

'24

'25

'26

Most active in

Bernal HeightsInner SunsetRussian Hill

Every permitted job

3 permits on record. Values are declared at filing.

Apr 8, 2026
No cost listed
Install sump pump in backyard area with underground plumbing work.
2454 Hyde StRussian Hillissued#Plumbing
#PP20260408401
Apr 8, 2026
No cost listed
Installation of sump pump with underground work in back yard.
201 Banks StBernal Heightsissued#Plumbing
#PP20260408400
Jan 20, 2026
No cost listed
Unit 1387: remodel bathroom to bring up to code.
1387 18th AvInner Sunsetcomplete#Bathroom remodel#Plumbing
#PP20260121936